Apologies for sticking my nose in as a non-pilot, but would the fact that presumably the Eirjet pilots don't normally operate to such tight turnrounds as Ryanair be a factor on the fatigue issue? Presumably Ryanair pilots are used to the pace of their turnrounds, and how best to deal with it, but I imagine if you are used to 45 minute turnruonds then 25 minutes must come as a bit of a shock.